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Question Results

Score 3 of 3

Question:

Multiple choice question

Substitution comes from the word substitute which means using one thing instead of another thing.

For example:

Carob is a fruit which tastes a lot like chocolate. The substitution of carob in place of chocolate reduces the calories in cookies.

an alternative choice

something you use instead of another thing

a replacement for something or somebody

an addition to something

Which answers below are closest in meaning to substitution? Choose the 3 correct answers.

Response:

an addition to something

something you use instead of another thing

an alternative choice

a replacement for something or somebody
Score 3 of 3

Question:

Multiple choice question

make something work better.

work instead of something else.

be similar to what they are replacing.

make sure something stays the same.

Which answers below best complete this sentence? Choose the 3 correct answers. Substitutes can...

Response:

be similar to what they are replacing.

work instead of something else.

make sure something stays the same.

make something work better.
Score 2 of 2

Question:

Multiple choice question

Read this paragraph and answer the question below.

wind power (produces electricity by turning a turbine)

coal (may be burned to produce energy and releases large amounts of carbon)

solar energy (uses power from the sun and can operate alongside other energy sources)

Global Warming and Energy Substitutes

 

Some scientists claim that global warming is caused by the release of 'greenhouse gases' into the atmosphere. These gases are caused mainly by energy sources which contain carbon. This is why scientists are encouraging initiatives to find energy substitutes that are both carbon-free and economical.

Which sources may be good energy substitutes that would reduce global warming? Choose the 2 correct answers.

Response:

wind power (produces electricity by turning a turbine)

solar energy (uses power from the sun and can operate alongside other energy sources)

coal (may be burned to produce energy and releases large amounts of carbon)